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Thank you all for your input towards helping me make the right decision. I’m so very grateful (though utterly confused at the same time!) I have in fact tried out a 10” dob- I loved the view. The notable difference was on the Jewel Box Cluster. In my 6” the gold star is very tiny and you can just make it out, on the 10” it’s bright and very much there-you can’t miss it. Never tried an 8”, so was happy to compromise and settle in the middle of these two scopes. Size wise- the 10” really didn’t look that big to me, I could easily handle the size, the weight is another story. Say we put the weight issue aside and utilize a trolley, there are other concerns that I regularly come across reading, and these issues add to my issues of weight/transportability. Will the following be big issues for me…..
1)Collimation. I hear the 10’s need this regularly, especially after every car trip?
2)Dew problems. More of a problem with a 10”?
3)Cooling down period takes longer?
4)This is a fast scope at F5. How will this impact on my current premium eyepieces (Vixen lvw 22m, Petax xw10mm)?
5)The planets get very picky when it comes to less than desirable seeing conditions through larger apertures, as large apertures can magnify poor conditions that smaller apertures don’t reveal (as they don’t show as much detail). I regularly come across this point. Do I have to carefully pick my nights when I view planets?.
6)Lastly, a valid point I’m about to raise. The only other two females on here that I know of that have got 10” dobs: JJJnettie sold hers, and Liz went for collapsible. This isn’t giving me much confidence.
7)There doesn’t seem to be much of a difference between and 8” and a 10”, than
There is from a 6” to an 8”. I have detailed the differences below:
6” Resolving Power: 0.74 Faintest Stellar Magnitude: 13.6
8” Resolving Power: 0.56 Faintest Stallar Magnitude: 14.2
10” Resolving Power: 0.56 Faintest Stellar Magnitude: 14.7
From what I see, I see a whole magnitude difference between the 6 and an 8 (that’s 2 and a half times brighter, right?), but not even a mag. Difference between the 8 and the 10. I don’t doubt the 10 will give a better view on top of the 8, but from what it looks like there is a bigger jump from the 6 to the 8, than there is from the 8 to the 10. What do you’ll think?
I’m trying to keep in the forefront of my thinking, the classic line “the best scope is the one you use the most”. If the 10” ends up being quite a bit of maintenance (regarding the above points), I have to ask myself, would I really use it as much as I do now, in comparison with my 6”(despite stunning views).
I understand and appreciate that you'll are trying to give me the best advice, and believe me,I am taking everything you'll say into heavy consideration.
Regards,
Suzy.
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